Ответы
Пошаговое объяснение:
9/11 * (х - 2/3) = 50
х - 2/3 = 50 : 9/11
х - 2/3 = 50 * 11/9
х - 2/3 = 550/9
х = 550/9 + 2/3
х = 550/9 + 6/9
х = 556/9
х = 61 7/9
11,2 : (х - 2/15) = 6
х - 2/15 = 11,2 : 6
х - 2/15 = 112/10 * 1/6
х - 2/15 = 112/60
х - 2/15 = 28/15
х = 28/15 + 2/15
х = 30/15
х = 2
(2 1/16 + х) : 3 9/32 = 2/3
2 1/16 + х = 2/3 * 3 9/32
2 1/16 + х = 2/3 * 105/32
2 1/16 + х = 1/1 * 35/16
2 1/16 + х = 35/16
2 1/16 + х = 2 3/16
х = 2 3/16 - 2 1/16
х = 2/16
х = 1/8
(х + 8/27) : 19 5/9 = 1/12
х + 8/27 = 1/12 * 19 5/9
х + 8/27 = 1/12 * 176/9
х + 8/27 = 1/3 * 44/9
х + 8/27 = 44/27
х = 44/27 - 8/27
х = 36/27
х = 4/3
х = 1 1/3
Ответ:
Пошаговое объяснение:
1)
9/11 * (х - 2/3) = 50
х - 2/3 = 50 : 9/11
х - 2/3 = 50 * 11/9
х - 2/3 = 550/9
х = 550/9 + 2/3
х = 550/9 + 6/9
х = 556/9
х = 61 7/9
2)
11,2 : (х - 2/15) = 6
х - 2/15 = 11,2 : 6
х - 2/15 = 112/10 * 1/6
х - 2/15 = 112/60
х - 2/15 = 28/15
х = 28/15 + 2/15
х = 2
3)
(2 1/16 + х) : 3 9/32 = 2/3
2 1/16 + х = 2/3 * 3 9/32
2 1/16 + х = 2/3 * 105/32
2 1/16 + х = 1/1 * 35/16
2 1/16 + х = 35/16
2 1/16 + х = 2 3/16
х = 2 3/16 - 2 1/16
х = 2/16 = 1/8
4)
(х + 8/27) : 19 5/9 = 1/12
х + 8/27 = 1/12 * 19 5/9
х + 8/27 = 1/12 * 176/9
х + 8/27 = 1/3 * 44/9
х + 8/27 = 44/27
х = 44/27 - 8/27
х = 36/27
х = 1 1/3